This research discovered that a valuable desert truffle can form a beneficial relationship with argan trees, helping them grow better while potentially allowing both truffles and argan fruits to be produced in the same area. This finding has several practical implications: • Could lead to new sustainable farming systems combining truffle and argan oil production • Helps argan trees grow better in harsh desert conditions • Provides a way to restore degraded desert lands while producing valuable food products • Could improve economic opportunities in arid regions through dual cultivation • Demonstrates an eco-friendly approach to agriculture in challenging environments